Innovative Multi-Feed-Per-Beam Reflector Antenna for Space-Borne Conical-Scan Radiometers

Jakob R. de Lasson, Cecilia Cappelin, Knud Pontoppidan, Oleg Iupikov, Marianna Ivashina, Niels Skou, Benedetta Fiorelli

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    Abstract

    We present an antenna for use on conical-scan space-borne radiometers in C band and demonstrate that stringent radiometric requirements can be met. The antenna consists of as m offset reflector fed by a focal plane array in a multi-feed-per-beam configuration, so far never used in ocean observation missions. We use distinct element beams and two optimization routines for obtaining element excitation amplitudes and phases, and with either routine, and in both x- and y-polarization, compliant beams, with footprint < 20 km, distance to coast < 20 km and accuracy < 0.25 K, are obtained. These results may pave the way for use of focal plane arrays with digital beamforming in future radiometric ocean observation missions.
    Original languageEnglish
    Title of host publication2018 Ieee International Symposium on Antennas and Propagation and Usnc/ursi National Radio Science Meeting
    PublisherIEEE
    Publication date2019
    Pages1729-1730
    ISBN (Electronic)978-1-5386-7102-3
    DOIs
    Publication statusPublished - 2019
    Event2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting - The Westin Boston Waterfront Hotel, Boston, United States
    Duration: 8 Jul 201813 Jul 2018
    https://ieeexplore.ieee.org/xpl/conhome/8586783/proceeding

    Conference

    Conference2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting
    LocationThe Westin Boston Waterfront Hotel
    Country/TerritoryUnited States
    CityBoston
    Period08/07/201813/07/2018
    Internet address

    Keywords

    • Antenna arrays
    • Radiometers
    • Oceans
    • Optimization
    • Microwave radiometry
    • Sea measurements

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